Free D-DS-FN-23 Exam Braindumps
Dell Certified Data Science Foundations Questions 16–20 (page: 5)

Updated On: 10-Feb-2026

What converts SQL-like commands into either Tez, Spark, or MapReduce jobs that are submitted to the Hadoop cluster?

  1. Pig
  2. HBase
  3. Hive
  4. Mahout

Answer(s): C



What is the similarity between the matrix and array data structures in R?

  1. Both structures can contain only integers
  2. Both structures can only contain one data type
  3. Both structures can store multiple data types
  4. Both structures must be 2-dimensional

Answer(s): B



Which visualization technique should be avoided?

  1. Using a small number of contrasting colors to draw distinctions
  2. Using tables of numbers to present all of the data visually
  3. Achieving a high data-ink ratio
  4. Using visuals to illustrate key points

Answer(s): B



Which analytic technique would be appropriate to estimate home sale price in U.S. dollars as a function of square footage, number of bedrooms, and lot size?

  1. Time series analysis
  2. Linear regression
  3. Naive Bayesian classification
  4. K-means clustering

Answer(s): B



How should project results be communicated to executives and the project sponsor?

  1. Focus on business outcomes and benefits
  2. Demonstrate your technical prowess to establish credibility
  3. Provide model performance visualizations
  4. Emphasize coding details and technical requirements

Answer(s): A



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